wheel offset math??

Buddy A · 06-25-2009, 05:34 PM

Quick question. What is the diference between 18x8.5@56mm and 18x9.5@40mm? Is it 1"16mm away from the wheel hub? In other words, will Z06 wheels stick out 1" + or - 16mm?
Tried search and found the info. Just unclear on the specifics.

Buddy A · 06-25-2009, 05:49 PM

May have answered my own question. The wheel will stick out 1 1/8th inch farther? (1.141732inches)
Back wheel will stick out 1 13/16ths inch farther? Back is no problem. Quarters will be here any day.

cenzo · 06-26-2009, 10:05 PM

Budddy,
neither of those wheels mentioned in your original posts are Z06 sizes, if that's what your trying to calculate.

Buddy A · 06-27-2009, 12:22 PM

The 18 x 9.5 is OEM Z06 and I thought the offset was 40mm?

cenzo · 06-27-2009, 12:29 PM

17x9.5 - 54mm
18x10.5 - 58mm

These are pretty close to flush on stock Z06

jimmyb496 · 06-27-2009, 01:23 PM

The 9.5 x 40mm will sit 1.13" "further out" than the 8.5 x 56mm wheels.